public class Application {
	public static void main(String[] args) {
		MobileTelephone telephone = new MobileTelephone();
		SIM sim=new SIMOfChinaMobile();
		sim.setNumber("810525236");
		telephone.useSIM(sim);
		telephone.showMess();
		sim=new SIMOfChinaUnicom();
		sim.setNumber("810525236");
		telephone.useSIM(sim);
		telephone.showMess();
	}
}
